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Area, SM-Bank 117

Calculate the area of a circle with a radius of 72.3 centimetres. Give your answer correct to one decimal place.   (2 marks)

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\(16\ 422.0\ \text{cm}^2\ (1\ \text{d.p.})\)

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\(\text{Area}\) \(=\pi r^2\)
  \(=\pi\times 72.3^2\)
  \(=16\ 422.015\dots\)
  \(=16\ 422.0\ \text{cm}^2\ (1 \text{ d.p.})\)

Filed Under: Circular measure Tagged With: num-title-ct-core, smc-4944-10-Circles

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